CN219270319U

CN219270319U - Portable article

Info

Publication number: CN219270319U
Application number: CN202223454775.5U
Authority: CN
Inventors: D·施利希蒂; M·申克
Original assignee: ETA Manufacture Horlogere Suisse SA
Current assignee: ETA Manufacture Horlogere Suisse SA
Priority date: 2021-12-23
Filing date: 2022-12-23
Publication date: 2023-06-30
Anticipated expiration: 2032-12-23
Also published as: KR20230096855A; US20230200500A1; JP2023094559A; JP7450693B2; EP4202571A1; CN116326896A

Abstract

The utility model relates to a portable article (1) comprising: a shell (20) having a central piece (21) without a fastening horn and comprising two longitudinal cavities (110) extending in a longitudinal direction (X-X); wristband (30), the wristband comprising two ends (31), each end (31) of the wristband (30) cooperating with a mounting interface (200) configured to detachably cooperate with a longitudinal cavity (110) of a centre piece (21) so that the wristband (30) may be mounted, characterized in that the mounting interface (200) is one-piece and comprises: an element (210) for receiving and securing one end (31) of the wristband (30); -an elastic sheathing element (220) for axially locking the mounting interface (200) in the longitudinal cavity (110) in a longitudinal direction (X-X); an element (230) for locking the mounting interface (200) in the longitudinal cavity (110) in a direction transverse to the longitudinal direction (X-X).

Description

Portable article

Technical Field

The present utility model relates to a portable article comprising a housing and a wristband attached to the housing intended to be worn on a wrist of a user. The present utility model relates more particularly to a detachable attachment device for detachably attaching a wristband to a case of a portable article, so that the attachment and detachment of the wristband can be facilitated.

The utility model relates more particularly to a wristwatch comprising a case not provided with a fastening horn (corne de fixation) and a wristband connected to said case via a detachable attachment device.

Background

The attachment means that make it possible to fasten the wristband to the case are generally quite complex, due to the number of different parts required for their assembly and to the complexity of these parts, as well as to the difficulty of their manufacture.

In particular, the end of each section (bin) of the wristband and the case must be specially shaped, machined to be able to be assembled. Furthermore, the installation of these various elements is quite long and therefore expensive.

The usual attachment means are based on the presence of: two horns or other protruding elements arranged on the rim of the case centre; a transverse bar inserted at the ends of the wristband segment, each end of the transverse bar being inserted into an aperture disposed at each corner.

This type of attachment of the wristband to the case requires the use of special tools to achieve interchangeability of the wristband. Thus, if a user wants to replace their wristband for wear or aesthetic reasons, they typically have to find a professional to perform such a replacement operation. Thus, such an operation requires time and incurs a certain cost.

From an industrial point of view, horns or other elements protruding on the edge of the centre piece prevent the automation of many operations during the manufacture of the watch case or also during finishing. Thus, some operations need to be performed manually in order to avoid damaging the horn or other protruding elements.

The known attachment means make it possible to promote interchangeability of the wristband. However, these attachment means are often complex to produce and require the use of a number of insertion or connection parts between the knot of the wristband, the mounting interface and the case to ensure locking of the wristband relative to the mounting interface and locking of the mounting interface with the case, for example by springs, vanes or the like.

Furthermore, the attachment means providing a simplified interchangeability of the wristband require a significant modification of the watch case and/or wristband without facilitating as much as possible the method of manufacturing these elements, which creates additional costs during manufacturing.

Accordingly, there is a need for improved means for removably attaching a wristband to a watchcase, and more generally for attaching a wristband to a portable item, so as to remedy at least one of the above known and described limitations.

Disclosure of Invention

In this context, the object of the present utility model is to propose a portable article comprising an attachment device of simple design, which is quite inexpensive, requiring only a single one-piece part to ensure the retention of the wristband and the coupling and locking of the wristband to the case. Thus, the present utility model provides a "one-piece" solution that is easy to mass-produce by conventional production means.

Another object of the present utility model is to propose an attachment device such that the wristband may be easily mounted on and removed from the casing by means of an elastic mounting sleeve (eboitage). Thus, users can easily replace their wrist bands when worn, or modify aesthetics without resorting to professionals.

Another object of the utility model is to propose an attachment device that makes it possible to easily manufacture parts so that the wristband and the case can be fully automated in a conventional way and that does not require manual maintenance operations on the attachment device.

The attachment device according to the utility model makes it possible to propose a shell in which the central piece is not provided with horns and protruding elements for mounting the wristband, which makes it possible to have a shell that is symmetrical and easy to automate during production. Thus, the proposed solution has an economic advantage over prior art solutions, which are more complex to manufacture and require more operations.

To this end, the utility model relates to a portable article comprising: a shell having a central piece without a fastening horn and comprising two longitudinal cavities extending in a longitudinal direction X-X; a wristband comprising two ends, each end of the wristband cooperating with a mounting interface configured to detachably cooperate with a longitudinal cavity of the centerpiece so that the wristband may be mounted, characterized in that the mounting interface is one-piece and comprises:

-an element for receiving and securing one end of the wristband;

-an elastic sheathing element for axially locking the mounting interface in said longitudinal cavity in a longitudinal direction X-X;

-means for locking the mounting interface in said longitudinal cavity according to a direction transverse to the longitudinal direction X-X.

Advantageously, the mounting interface is an attachment part, unlike a wristband.

In addition to the features mentioned in the preceding paragraphs, the portable article according to the utility model may have one or more of the following additional features considered alone or in combination according to all technically possible:

-a mounting interface configured to cooperate by sliding into the longitudinal cavity of the hub;

the element for receiving and fixing one end of the wristband is formed by two support plates, which are spaced apart from each other by a distance such that the end of the wristband can be positioned between the two support plates;

the support plate has an aperture for passing through a member for securing the wristband;

-the end of the wristband is stitched, welded or overmoulded onto the support plate;

the element for receiving and fixing one end of the wristband is formed by a slot for receiving the end of the wristband and a tooth or protuberance configured to be inserted and threaded into the material of the wristband so as to ensure the locking thereof;

-the teeth or projections are arranged in the grooves;

the teeth have different profiles and/or different orientations; advantageously, the teeth are oriented differently from each other;

in the free position, the slot has an opening greater than the thickness of the end of the wristband;

in the free position, the external dimensions of the mounting interface adjacent to the slot are greater than the internal dimensions of the longitudinal cavity, the mounting interface being configured to compress elastically to reduce the opening of the slot during its insertion into the longitudinal cavity;

the elastic sheathing element is formed by at least one elastic clip cooperating with at least one housing arranged in the longitudinal cavity;

the elastic sheathing element is formed by two elastic clips at the longitudinal ends of the mounting interface, the two elastic clips being configured to cooperate with two end housings arranged at the longitudinal cavity;

-the elastic sheathing element is formed by a central elastic clip configured to cooperate with a central housing arranged at the longitudinal cavity;

the elastic sheathing element is configured to be reversible and makes it possible to unlock the axial position of the mounting interface without damaging one of the elements constituting the mounting interface;

the element for locking the mounting interface in said longitudinal cavity in a direction transverse to the longitudinal direction X-X is formed by a bearing surface cooperating with an undercut portion or a complementary stop surface of the longitudinal cavity;

the mounting interface is made of a polymeric or metallic material;

the central part of the shell is made of thermoplastic, preferably polyamide 11;

the longitudinal cavity is open such that the mounting interface can be inserted indifferently through the first end or the second end of the cavity;

the longitudinal cavity extends over two circular sections of the central piece at 6 o 'clock and 12 o' clock;

advantageously, the portable object is a wristwatch.

Drawings

Objects, advantages and features of the present utility model will become apparent upon reading the following detailed description with reference to the accompanying drawings in which:

figure 1 shows a perspective view of a first embodiment of a portable article according to the utility model;

figure 2 shows an exploded view of the first embodiment of the portable article illustrated in figure 1;

figure 3 shows a perspective view of a second embodiment of a portable article according to the utility model;

figure 4 shows an exploded view of a second embodiment of the portable object illustrated in figure 3;

figure 5 shows a perspective view of a third embodiment of the mounting interface of the wristband according to the utility model.

Common elements have the same reference numerals throughout the figures unless otherwise indicated.

Detailed Description

Fig. 1 shows a perspective view of a first embodiment of a portable object 1 according to the utility model.

Fig. 2 shows an exploded view of the first embodiment of the portable item 1 illustrated in fig. 1 in order to view the various elements that make up the attachment system for attaching the wristband.

In the present application, the portable article 1 takes the form of a timepiece, such as a wristwatch intended to be worn on the wrist of a user. It should also be understood that the portable item 1 may be, for example, a pedometer, a heart rate monitor or any other portable item intended to be worn by a wrist strap, for example, on the wrist.

The portable object 1 comprises a housing 20 intended to receive, for example, a timepiece movement (not shown here for the sake of clarity). The timepiece movement carries and drives means for displaying an item of information (for example the current time).

The housing 20 comprises a central piece 21, which is closed by a front and back in the lower part and a glass (not shown) in the upper part. The housing 20 may also include a bezel (not shown) mounted on the center piece 21 and which may carry a bezel, which may or may not rotate.

The illustrated housing 20 is generally circular. However, the housing 20 may have other known embodiments without departing from the scope of the utility model.

The centre piece 21 is not provided with a fastening horn, but comprises two longitudinal cavities 110 (a single longitudinal cavity visible in fig. 1 and 2) which form a first part of the attachment system 100 for attaching the wristband 30. The longitudinal cavity 110 is configured to receive each end 31 of the wristband 30, and more particularly, a mounting interface 200 secured to one end 31 of the wristband 30, the mounting interface 200 forming a second portion of the attachment system 100 for attaching the wristband 30.

Each longitudinal cavity 110 arranged in the central piece 21 forms a mounting slide bar extending in the longitudinal direction X-X.

To this end, the shape of the longitudinal cavity 110 is adapted to ensure a sliding connection in the longitudinal direction X-X and to block other degrees of freedom, in particular in a direction transverse to the longitudinal direction X-X.

Each longitudinal cavity 110 is configured to cooperate with a complementary mounting interface 200 in such a way as to ensure quick, simple and removable mounting of wristband 30.

Each longitudinal cavity 110 is configured to receive and ensure translational guidance of the mounting interface 200 in the longitudinal direction X-X by sliding the mounting interface 200 until the locked position is reached.

The longitudinal cavity 110 is created at two fastening portions opposite each other, located on either side of the dial (not shown), and advantageously at 6 o 'clock and 12 o' clock.

The longitudinal cavity 110 extends over two circular sections of the central piece 21 at 6 o 'clock and 12 o' clock.

Each longitudinal cavity 110 is open, that is, it is open at both the first and second ends, such that each mounting interface 200 secured to wristband 30 may be introduced and removed through both the first and second ends of the longitudinal cavity 110 (that is, through the end on the crown side (3 o 'clock side) or through the end on the opposite side of the crown (9 o' clock side)).

The wristband 30 is in the form of two sections 32 (only one section shown) which are connected to each other by a closure means (not shown), such as a clasp, a fold or any other special element, so that the function of attaching the two sections 32 of the wristband 30 around the wrist of a user may be performed.

According to an alternative embodiment, wristband 30 is a monofilament.

The wristband 30 is preferably flexible.

The mounting interface 200 is a one-piece part so that multiple functions can be ensured.

The mounting interface 200 comprises in particular elements for ensuring the reversible fixing of the wristband 30 to the casing 20, and has elements that make it possible to facilitate the removal of the wristband and thus the interchangeability of the wristband by the user.

To this end, the mounting interface 200 includes an element 210 for receiving and securing one end 31 of the wristband 30.

In this first embodiment, the element 210 for receiving and securing one end 31 of the wristband 30 is formed by two

support plates

211, 212 spaced apart from each other by a distance such that the end 31 of the wristband 30 can be positioned between the two

support plates

211, 212. Thus, the end 31 of the wristband 30 is defined by the two

support plates

211, 212 of the mounting interface 200.

More particularly, the element 210 for receiving and securing one end 31 of the wristband 30 is formed by a first upper support plate 211 and a second lower support plate 212. The two

support plates

211, 212 are preferably parallel and extend in the longitudinal direction of the knot 32 of the wristband 30.

Advantageously, the distance separating the two

support plates

211, 212 is slightly less than the thickness of the knot 32 at its end 31, in such a way as to make it possible to position the wristband 30 between the two

support plates

211, 212 while ensuring a pre-retention of the knot 32. Such a configuration makes it possible to facilitate the operation of fixing the joint 32 on the mounting interface 200.

The

support plates

211, 212 have a plurality of apertures 213 for passing through or hooking one or more of the means for securing the wristband 30. The means for securing the wristband 30 is selected based on the material of the section 32 of the wristband 30 (e.g., made of leather, elastic thermoplastic, fabric, etc.).

Thus, as an example, the end 31 of the wristband 30 may be stitched, welded at the aperture 213, or may be over molded directly onto the mounting interface 200.

The mounting interface 200 further comprises a resilient sheathing element 220 for axially locking the mounting interface 200 in said longitudinal cavity 110 in the longitudinal direction X-X.

The resilient sleeve element 220 is formed by two

resilient clips

221, 222 at the longitudinal ends of the mounting interface 200. The two

resilient clips

221, 222 are configured to cooperate with the two

end housings

116, 117 disposed at the longitudinal cavity 110 to block and lock the axial position of the mounting interface 200 (and thus the wristband 30) in the longitudinal direction X-X.

The two

spring clips

221, 222 are symmetrical and are configured to be compressed within the longitudinal cavity 110 during installation.

The two

spring clips

221, 222 are configured to resume their free position (uncompressed) at the

end housings

116, 117 of the longitudinal cavity 110 by spring return. When the spring clips 221, 222 are in the free position in the

end housings

116, 117, axial movement of the mounting interface 200 in the longitudinal direction X-X is blocked.

To this end, each

spring clip

221, 222 comprises a bearing surface 223 arranged substantially perpendicular to the longitudinal direction X-X and configured to abut against a side wall of the

end housing

116, 117 of the longitudinal cavity 110.

The mounting interface 200 further comprises an element 230 for locking the mounting interface 200 in a direction transverse to the longitudinal direction X-X.

In the illustrated embodiment, this lateral direction at the longitudinal cavity 110 is similar to a radial direction relative to the center of the shell.

The element 230 for locking the mounting interface 200 in a direction transverse to the longitudinal direction X-X is formed by the front bearing surface 224 of the mounting interface 200 cooperating with the undercut portion of the longitudinal cavity 110.

In this first embodiment, the mounting interface 200 is advantageously made of a polymeric material, preferably a thermoplastic material.

In this first embodiment, the mounting interface 200 is manufactured, for example, by injection.

To perform the removal of the wristband 30, the user constrains one of the

resilient clips

221, 222 of the mounting interface 200 according to the selected removal direction in such a way as to elastically deform it until a compressed position is reached, such that the

resilient clip

221, 222 may be released from the

corresponding end housing

116, 117. Once the spring clips 221, 222 have been released from the

end housings

116, 117, the user may remove the wristband 30 by sliding the mounting interface 200 out of the longitudinal cavity 110.

The

resilient clips

221, 222 at the ends of the mounting interface 200 are easily accessible to a user because they form an extension of the outer surface of the center piece 21. Thus, the user may simply interact with the

resilient clips

221, 222 with their finger, their nail, or a basic tool (such as a pen, paperclip, staple) that is also easily accessible to the user to continue with the removal of the wristband.

Fig. 3 shows a perspective view of a second embodiment of a portable object 2 according to the utility model.

Fig. 4 shows an exploded view of the second embodiment of the portable article 2 illustrated in fig. 3, so as to show the various elements that make up the attachment system 100' for attaching the wristband 30.

In this second embodiment, the portable object 2 is identical to the portable object 1 described above, except for the features to be described.

In this second embodiment, the mounting interface 300 is made of a metallic material and is manufactured, for example, by stamping.

The mounting interface 300 includes an element 310 for receiving and securing one end 31 of the wristband 30, where it is formed by a slot 311 that allows for introduction of the end 31 of the knot 32 of the wristband 30 and a tooth 312 configured to be inserted and threaded into the material of the knot 32 of the wristband 30 so as to ensure locking thereof.

Teeth 312 are directed inwardly of slots 311 and extend in the direction of section 32.

Advantageously, the mounting interface 300 comprises four teeth 312 distributed in the slot 311.

The teeth 312 have a profile that facilitates insertion and penetration into the material of the section 32 of the wristband 30.

Advantageously, the teeth 312 have different profiles and/or different orientations in such a way as to optimize the blocking of the longitudinal and transversal movements of the segments 32 inside the slots 311.

Advantageously, each tooth 312 has a different orientation than the other teeth in such a way as to optimize the resistance to longitudinal and lateral movement of the segments 32.

The mounting interface 300 includes a resilient sleeve element 320 for axially locking the mounting interface 300 in the longitudinal cavity 120. Here, the elastic sheathing element 320 is formed by a single central elastic clip 321, which single central elastic clip 321 is configured to cooperate with the central housing 126 of the longitudinal cavity 120 provided for this purpose.

The central spring clip 321 is configured to be compressed during introduction of the mounting interface 300 into the longitudinal cavity 120.

The central spring clip 321 is configured to return to its free position once the spring clip 321 faces the central housing 126, thereby ensuring axial locking of the mounting interface 300.

To perform the removal of the mounting interface 300, the housing 20 includes an aperture accessible by a user from outside the housing. This aperture communicates with the central housing 126 of the longitudinal cavity 120. The aperture is configured so that a basic tool can be introduced and is easily within reach of the user, e.g. a clip, an end of a staple, so as to be able to restrain the central resilient clip 321 of the mounting interface 300 in such a way as to elastically deform it until reaching a compressed position enabling the mounting interface 300 to be removed.

The mounting interface 300 further comprises an element 330 for locking the mounting interface 300 in a direction transverse to the longitudinal direction X-X. The element 330 for locking the mounting interface 300 in the transverse direction is formed by front bearing surfaces 331, 332 cooperating with complementary bearing surfaces arranged in the longitudinal cavity 120.

Fig. 5 shows a perspective view of a third embodiment of a mounting interface 400 according to the utility model.

In this third embodiment, the mounting interface 400 is advantageously made of a polymeric material, preferably a thermoplastic material.

The mounting interface 400 is manufactured, for example, by injection molding.

The mounting interface 400 includes an element 410 for receiving and securing one end 31 of the wristband 30, where the element is formed by a slot 411 that allows for introduction of the end 31 of the knot 32 of the wristband 30 and a protrusion 412 configured to be inserted into and threaded into the material of the knot 32 of the wristband 30. Various protrusions 412 are advantageously distributed within the slot 411.

Advantageously, the opening of the slot 411 is slightly greater than the thickness of the end 31 of the knot 32 of the wristband 30 in such a way as to facilitate the insertion of the end 31 of the knot 32 into the slot 411.

The outer dimensions of the mounting interface 400 adjacent the slot 411 are also slightly larger than the inner dimensions of the longitudinal cavity such that the mounting interface 400 is compressed in the longitudinal cavity, which has the effect of reducing the opening of the slot 411, clamping the section 32 of the wristband 30 at the slot 411, and otherwise introducing the boss 412 into the material of the section 32. Thus, once in place in the longitudinal cavity, the segments 32 remain secured with the mounting interface 400.

In this embodiment, wristband 30 may be advantageously removed from a mounting interface 400, if desired.

The mounting interface 400 includes a resilient sleeve element 420 for axially locking the mounting interface 400 in the longitudinal cavity. Here, the elastic sheathing element 420 is formed by a single central elastic clip 421, which single central elastic clip 421 is configured to cooperate with a central housing of a longitudinal cavity provided for this purpose.

The central spring clip 421 is configured to be compressed during introduction of the mounting interface 400 into the longitudinal cavity and return to its free position once the central spring clip 421 is positioned facing the central housing of the longitudinal cavity.

To perform the removal of the mounting interface 400, the housing 20 includes a hole accessible from outside the housing. The bore communicates with the central housing of the longitudinal cavity. The aperture is configured so that a basic tool can be introduced and easily within reach of the user, e.g. a clip, an end of a staple, so as to be able to restrain the central resilient clip 421 and to elastically deform it until reaching a compressed position enabling the mounting interface 400 to be removed.

The mounting interface 400 further comprises elements 430 for locking the mounting interface 400 in a direction transverse to the longitudinal direction X-X. The element 430 for locking the mounting interface 400 in the transverse direction is formed by outer bearing surfaces 431, 432 cooperating with undercut portions of the longitudinal cavity in order to ensure blocking of the mounting interface 400 in the transverse direction.

The mounting

interface

200, 300, 400 according to the present utility model allows for quick mounting to be performed reversibly by the elastic fit of the wristband 30, rather than using an elastic fit system, referred to as irreversible, which requires breaking or degradation of the mounting interface to remove the wristband 30 from the case 20.

The mounting

interface

200, 300, 400 makes it possible to perform a stable detachable connection of the wristband, in particular by a sliding connection ensuring a good stability of the mounting interface in the longitudinal cavity.

In the present utility model, the central piece 21 of the shell 20 does not include any protruding elements for fastening the wristband 30. Thus, the manufacture of the housing 20 may be integrally performed in an automated manner.

By way of example, the central member 21 is made of a metallic material or a polymer. Advantageously, the central member 21 is made of thermoplastic. By way of example, the central member 21 may be made of polyamide 11, also referred to as polyundecamide or nylon 11.

The central member 21 is advantageously a one-piece central member. However, it is also contemplated to produce a center piece assembled from a plurality of separately manufactured parts.

Advantageously, the polymeric centerpiece is a one-piece centerpiece produced by injection.

The portable article according to the utility model and the attachment system for attaching a wristband as described in the present application make it possible to significantly facilitate the method for producing a shell, since it is not provided with a fastening horn and is completely symmetrical. Thus, the manufacture of the shell and the mounting interface may be automated. Thus, the cost of manufacturing such assemblies and such portable articles is reduced, particularly due to the lack of repair operations at the housing and the use of a single interface piece to secure the wristband.

Furthermore, the mounting interface according to the present utility model makes it possible to simplify the interchangeability of the wristband, which makes it possible to easily replace the wristband when worn, or to modify the aesthetics with a simple operation, and without damaging the mounting interface or the case during the detachment of the wristband.

The utility model has been described using specific embodiments of a hub and mounting interface. It is apparent, however, that other embodiments are contemplated, as well as embodiments derived from the described embodiments.

Claims

1. A portable object (1, 2), characterized in that it comprises: -a shell (20) having a central piece (21) without a fastening horn and comprising two longitudinal cavities (110, 120) extending in a longitudinal direction (X-X); wristband (30) comprising two ends (31), each end (31) of the wristband (30) cooperating with a mounting interface (200, 300, 400) configured to detachably cooperate with a longitudinal cavity (110, 120) of the central piece (21) so that the wristband (30) may be mounted, the mounting interface (200, 300, 400) being one-piece and comprising:

-an element (210, 310, 410) for receiving and securing one end (31) of the wristband (30);

-an elastic sheathing element (220, 320, 420) for axially locking the mounting interface (200, 300, 400) in the longitudinal cavity (110, 120) in the longitudinal direction (X-X);

-an element (230, 330, 430) for axially locking the mounting interface (200, 300, 400) in the longitudinal cavity (110, 120) in a direction transverse to the longitudinal direction (X-X).

2. The portable article (1, 2) according to claim 1, characterized in that the mounting interface (200, 300, 400) is configured to cooperate by sliding into the longitudinal cavity (110, 120) of the central piece (21).

3. Portable article (1) according to any one of claims 1 to 2, characterized in that the element for receiving and securing one end (31) of the wristband (30) is formed by two support plates (211, 212) spaced apart from each other by a distance such that the end (31) of the wristband (30) can be positioned between the two support plates (211, 212).

4. A portable article (1) according to claim 3, characterized in that the support plate (211, 212) has an aperture (213) for passing through means for securing the wristband (30).

5. A portable article (1) according to claim 3, characterized in that the end (31) of the wristband (30) is stitched, welded or overmoulded on the support plate (211, 212).

6. The portable item (2) according to any one of claims 1 to 2, characterized in that the element for receiving and securing one end (31) of the wristband (30) is formed by a slot (311, 411) receiving the end (31) of the wristband (30) and a tooth (312) or protrusion (412) configured to be inserted and threaded into the material of the wristband (30) so as to ensure locking of the wristband.

7. The portable article (2) according to claim 6, characterized in that the teeth (312) or the protrusions (412) are arranged within the slots (311, 411).

8. The portable article (2) according to claim 6, characterized in that the teeth (312) have different profiles and/or different orientations.

9. Portable article (1, 2) according to claim 6, characterized in that in the free position the slot (411) has an opening greater than the thickness of the end (31) of the wristband (30).

10. The portable item (1, 2) according to claim 9, characterized in that in a free position, an outer dimension of the mounting interface adjacent to the slot (411) is larger than an inner dimension of the longitudinal cavity, the mounting interface being configured to compress elastically to reduce the opening of the slot (411) during insertion of the mounting interface into the longitudinal cavity.

11. Portable article (1, 2) according to any one of claims 1 to 2, characterized in that the resilient sleeve element (220, 320, 420) is formed by at least one resilient clip (221, 222, 321, 421) cooperating with at least one housing (116, 117, 126) arranged in the longitudinal cavity (110, 120).

12. The portable article (1) according to any one of claims 1 to 2, characterized in that the resilient sleeve element (220) is formed by two resilient clips (221, 222) located at the longitudinal ends of the mounting interface, the two resilient clips (221, 222) being configured to cooperate with two end housings (116, 117) arranged at the longitudinal cavity (110).

13. The portable article (2) according to any one of claims 1 to 2, characterized in that the elastic sleeve element (320, 420) is formed by a central elastic clip (321, 421) configured to cooperate with a central housing (126) arranged at the longitudinal cavity (120).

14. The portable article (2) according to any one of claims 1 to 2, characterized in that the resilient sleeve element (220, 320, 420) is configured to be reversible and to allow unlocking of the axial position of the mounting interface (200, 300, 400) without damaging one of the elements constituting the mounting interface (200, 300, 400).

15. Portable article (1, 2) according to any one of claims 1 to 2, characterized in that the element (230, 330, 430) for locking the mounting interface (200, 300, 400) in the longitudinal cavity (110, 120) in a direction transverse to the longitudinal direction (X-X) is formed by a bearing surface (224, 331, 332, 431, 432) cooperating with an undercut portion or a complementary stop surface of the longitudinal cavity (110, 120).

16. Portable article (1, 2) according to any of claims 1 to 2, characterized in that the mounting interface (200, 300, 400) is made of a polymeric or metallic material.

17. Portable article (1, 2) according to any one of claims 1 to 2, characterized in that the central piece (21) of the shell (20) is made of thermoplastic.

18. The portable article (1, 2) according to any one of claims 1 to 2, wherein the longitudinal cavity (110, 120) is open such that the mounting interface (200, 300, 400) may be inserted indifferently through the first end or the second end of the longitudinal cavity (110, 120).

19. Portable article (1, 2) according to any one of claims 1 to 2, characterized in that the longitudinal cavity (110, 120) extends over two circular sections of the central piece (21) at 6 o 'clock and 12 o' clock.

20. Portable article (1, 2) according to any of claims 1 to 2, characterized in that the portable article is a wristwatch.

21. Portable article (1, 2) according to claim 17, characterized in that the central piece (21) of the shell (20) is made of polyamide 11.